This icon is made up of a circle with two smaller black dots inside and is meant to represent a human head. There are two rectangles crossed below the black dots meant to represent tape that might be used to cover someone's mouth so they can't speak.
This is the Silent icon for Windows 10
. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.